package org.owasp.webgoat.lessons.admin;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import org.owasp.webgoat.lessons.*;
import org.apache.ecs.Element;
import org.apache.ecs.ElementContainer;
import org.apache.ecs.StringElement;
import org.apache.ecs.html.Input;
import org.owasp.webgoat.session.*;

/*******************************************************************************
 * 
 * 
 * This file is part of WebGoat, an Open Web Application Security Project
 * utility. For details, please see http://www.owasp.org/
 * 
 * Copyright (c) 2002 - 2007 Bruce Mayhew
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307, USA.
 * 
 * Getting Source ==============
 * 
 * Source for this application is maintained at code.google.com, a repository
 * for free software projects.
 * 
 * For details, please see http://code.google.com/p/webgoat/
 *
 * @author     Jeff Williams <a href="http://www.aspectsecurity.com">Aspect Security</a>
 * @created    October 28, 2003
 */
public class ViewDatabase extends LessonAdapter
{

    private final static String SQL = "sql";

    private static Connection connection = null;


    /**
     *  Description of the Method
     *
     * @param  s  Description of the Parameter
     * @return    Description of the Return Value
     */
    protected Element createContent(WebSession s)
    {
	ElementContainer ec = new ElementContainer();

	try
	{
	    ec.addElement(new StringElement("Enter a SQL statement: "));

	    StringBuffer sqlStatement = new StringBuffer(s.getParser()
		    .getRawParameter(SQL, ""));
	    Input input = new Input(Input.TEXT, SQL, sqlStatement.toString());
	    ec.addElement(input);

	    Element b = ECSFactory.makeButton("Go!");
	    ec.addElement(b);

	    if (connection == null)
	    {
		connection = DatabaseUtilities.makeConnection(s);
	    }

	    if (sqlStatement.length() > 0)
	    {

		Statement statement = connection.createStatement(
			ResultSet.TYPE_SCROLL_INSENSITIVE,
			ResultSet.CONCUR_READ_ONLY);
		ResultSet results = statement.executeQuery(sqlStatement
			.toString());

		if ((results != null) && (results.first() == true))
		{
		    makeSuccess(s);
		    ResultSetMetaData resultsMetaData = results.getMetaData();
		    ec.addElement(DatabaseUtilities.writeTable(results,
			    resultsMetaData));
		}

	    }
	}
	catch (Exception e)
	{
	    s.setMessage("Error generating " + this.getClass().getName());
	    e.printStackTrace();
	}

	return (ec);
    }


    /**
     *  Gets the category attribute of the DatabaseScreen object
     *
     * @return    The category value
     */
    protected Category getDefaultCategory()
    {
	return ADMIN_FUNCTIONS;
    }

    private final static Integer DEFAULT_RANKING = new Integer(1000);


    protected Integer getDefaultRanking()
    {
	return DEFAULT_RANKING;
    }


    /**
     *  Gets the hints attribute of the DatabaseScreen object
     *
     * @return    The hints value
     */
    protected List getHints()
    {
	List<String> hints = new ArrayList<String>();
	hints.add("There are no hints defined");

	return hints;
    }


    /**
     *  Gets the instructions attribute of the ViewDatabase object
     *
     * @return    The instructions value
     */
    public String getInstructions(WebSession s)
    {
	String instructions = "Please post a message to to the WebGoat forum. Your messages will be available for everyone to read.";

	return (instructions);
    }


    /**
     *  Gets the role attribute of the ViewDatabase object
     *
     * @return    The role value
     */
    public String getRole()
    {
	return HACKED_ADMIN_ROLE;
    }


    /**
     *  Gets the title attribute of the DatabaseScreen object
     *
     * @return    The title value
     */
    public String getTitle()
    {
	return ("Database Dump");
    }
}
